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207740148 = 2237111911833
BaseRepresentation
bin11000110000111…
…01110011110100
3112110220021220120
430120131303310
5411140141043
632340331540
75101522260
oct1430356364
9473807816
10207740148
11a729a280
12596a3bb0
1334067385
141d8390a0
1513387983
hexc61dcf4

207740148 has 96 divisors (see below), whose sum is σ = 636195840. Its totient is φ = 51114240.

The previous prime is 207740101. The next prime is 207740149. The reversal of 207740148 is 841047702.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207740149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11640 + ... + 23472.

It is an arithmetic number, because the mean of its divisors is an integer number (6627040).

Almost surely, 2207740148 is an apocalyptic number.

207740148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207740148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318097920).

207740148 is an abundant number, since it is smaller than the sum of its proper divisors (428455692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207740148 is a wasteful number, since it uses less digits than its factorization.

207740148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877 (or 11875 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 207740148 is about 14413.1935392542. The cubic root of 207740148 is about 592.2523767190.

The spelling of 207740148 in words is "two hundred seven million, seven hundred forty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 19 21 22 28 33 38 42 44 57 66 76 77 84 114 132 133 154 209 228 231 266 308 399 418 462 532 627 798 836 924 1254 1463 1596 2508 2926 4389 5852 8778 11833 17556 23666 35499 47332 70998 82831 130163 141996 165662 224827 248493 260326 331324 390489 449654 496986 520652 674481 780978 899308 911141 993972 1348962 1561956 1573789 1822282 2473097 2697924 2733423 3147578 3644564 4721367 4946194 5466846 6295156 7419291 9442734 9892388 10933692 14838582 17311679 18885468 29677164 34623358 51935037 69246716 103870074 207740148